Recently, I started researching the different types of stocks I can buy, and I discovered something that many novice investors don't understand well: not all stocks are the same. It turns out that companies can issue different types, and the differences between preferred and common stocks are quite significant depending on what you're looking for in your investment.

The thing is, when we talk about preferred and common stocks, we're talking about two completely different worlds within the same market. Let me explain how each one works.

Common stocks are the most well-known. They are the ones most people buy when they start investing. They give you voting rights at shareholder meetings, which means you have a say in the company's important decisions. The positive side is that if the company grows, your stocks can grow a lot too. But here’s the important part: the dividends you receive depend entirely on how well the company performs. If they do well, you get dividends. If they do poorly, you might get nothing. It’s riskier, but the potential for gains is higher.

Now, preferred stocks are something else. Here, the company offers you a kind of agreement: you will receive fixed or predetermined dividends, more stable than with common stocks. The trade-off is that you usually don’t have voting rights in corporate decisions. It’s like saying: “I prefer predictable income over decision-making power.” Additionally, if the company goes bankrupt, you have priority to recover your investment before common stockholders, though after creditors.

There are several types of preferred stocks worth knowing. There are cumulative ones, where if the company can’t pay you dividends in a period, they accumulate for later. Then there are convertible ones, which can be transformed into common stocks under certain conditions. There are also redeemable stocks, where the company can buy back your shares, and participative stocks, where your dividends are linked to the company’s financial results.

Liquidity is another different factor. Common stocks tend to have high liquidity because they are constantly traded on major markets. Preferred stocks are less liquid, meaning it can be more difficult to sell them quickly if you need to.

To understand this better, think of your profile as an investor. If you’re young and have a long-term horizon, you probably prefer common stocks. You can tolerate volatility and wait for them to grow. If you’re close to retirement or looking for regular, predictable income, preferred stocks are your option. Many conservative investors prefer them precisely for that stability.

An interesting fact: the S&P U.S. Preferred Stock Index, which represents about 71% of the preferred stock market traded in the United States, fell 18.05% over a five-year period, while the S&P 500 rose 57.60% in the same time. This clearly shows how preferred and common stocks behave differently depending on market conditions.

If you want to invest in either of these, the process is quite straightforward. First, choose a regulated and trustworthy broker. Then open your account by filling in your details. Next, analyze the company carefully: its numbers, its sector, its future. Finally, execute your order. You can choose between market orders or limit orders, and even trade CFDs on these stocks without needing to own them.

My personal recommendation is not to put all your eggs in one basket. Mix common and preferred stocks according to your risk tolerance. Review your portfolio periodically and adjust your strategy if the market changes. Diversification is key to reducing risks and maintaining a balance between growth and stability.